Expand the Trigonometric Expression (a+b+c)^3

${(a + b + c)}^{3}$

Step 1

Use the Multinomial Theorem.

$a^{3} + 3 a^{2} b + 3 a b^{2} + b^{3} + 3 a^{2} c + 6 a b c + 3 b^{2} c + 3 a c^{2} + 3 b c^{2} + c^{3}$